高强度变形铝合金半连续铸锭热裂纹的控制  

Thermal cracks control of the semi-continuous casting billets of high-strength wrought aluminum alloy

作　　者：李素梅[1] 邢志媛[1] 王旭东[1] 黄文淑[2] 侯立群[1] 聂砂[1] 杨波[1] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]包头北奔重型汽车有限公司,内蒙古包头014030

出　　处：《兵器材料科学与工程》2012年第5期54-56,共3页Ordnance Material Science and Engineering

摘　　要：采用半连续铸造工艺试制的高强度变形铝合金圆铸锭,热裂纹是常见的铸造缺陷。对热裂纹的形成原因和影响因素进行分析,并根据采取的措施,制定了合理的工艺流程。结果表明,通过调整合金成分、熔炼工艺和铸造制度,减少了铸锭的热裂纹倾向。The thermal cracks of casting defects are often observed when the semi-continuous casting process is applied to prepare the billets of high-strength wrought aluminum alloy. In this paper, the formation reason and influencing factors of thermal cracks were analyzed and the reasonable process based on the corresponding solution measures was established. The results show that the thermal cracking tendency of the casting billets is reduced by adjusting alloy composition, melting process and casting system.

关 键 词：半连续铸造 热裂纹 合金成分 熔炼工艺 铸造制度 

分 类 号：TG146.21[一般工业技术—材料科学与工程]